几何尺寸与公差论坛------致力于产品几何量公差标准GD&T (GDT:ASME)|New GPS(ISO)研究/CAD设计/CAM加工/CMM测量  


返回   几何尺寸与公差论坛------致力于产品几何量公差标准GD&T (GDT:ASME)|New GPS(ISO)研究/CAD设计/CAM加工/CMM测量 » 三维空间:产品设计或CAX软件使用 » CAD设计 » 产品功能分析
用户名
密码
注册 帮助 会员 日历 银行 搜索 今日新帖 标记论坛为已读


回复
 
主题工具 搜索本主题 显示模式
旧 2009-09-16, 11:45 AM   #1
huangyhg
超级版主
 
huangyhg的头像
 
注册日期: 04-03
帖子: 18592
精华: 36
现金: 249466 标准币
资产: 1080358888 标准币
huangyhg 向着好的方向发展
默认 structural steel prices

structural steel prices
all,
i'm a bit surprised that either i've missed the discussion on the impact steel prices are having on our industry or that we haven't had a discussion as of yet.
i'm interested to hear what others are experiencing. i've heard a number of things regarding the prices but recently have heard and read that the absence of "coke", a raw material, and an enormous demand in china for steel have curtailed supply and thus with demand so high the price has sky-rocketed. i've also been told that the steel industry was over-due for a correction and that prices were depressed for some time. the latter seems to imply the cost of steel may not see its pre 2004 prices again.
in the meantime, the concrete folks have seemed to caught on here in the midwest and are now charging more for this structural material - and i'm not talking about recovering rebar prices either....
anyone else?
regards,
qshake
eng-tips forums:real solutions for real problems really quick.
check out our whitepaper library.
enr has had weveral articles as companies like bridge builders who bid more than a year out are being hammered. the gov't has said it won't offer relief, either. we use a lot of pipe and prices have risen over 50% with a lot of scouring to find sources. steel fab comp[anies are now adding inflation clauses to their bids. china is using a lot more domestically and there was a coke fire that shut down our main source.
engineering is the art of not constructing...of doing that well with one dollar what any bungler can do well with two after a fashion.
aisc has a paper from a recent conference onlnine that is a good resource:
china is not only using more steel as they expand their economy, they are making more of their own steel, soaking up all the scrap that our domestic mills need to make steel for the demand here. so, it is a double whammy situation.
most modern domestic mills are "mini" mills, which are electric arc, furnaces, so in the areas of the country where nat gas is the primary power producing fuel, the added cost of electricity is also a factor.
rmw
steel has gone up around 15-20% in the uk over the past couple of months. i had a chat with a couple of steel fabricators who are anticipating at least another 5-10%. the main problem is not the cost but the delivery times which are getting longer.
with regards to the concrete issue, there are also delays in the rebar market. what on earth are the chinese bulding?
in one year they have developed a heavy equipment industry that is producing 33% of our market in excavators, etc. and when you consider the number of people and the amount of steel to just give each a 2 burner stove, it's a lot of steel. scrap prices have doubled so junkyards are clearing out their old cars. the roads around here are littered with trucks hauling crushed cars. perhaps if our steel industry had built a new plant in the last 50 years, instead of waiting for another world war to end so they could buy the plants at ten cents on the dollar, we might be better equipped. then again, as the jobs went overseas, you have to expect the materials needed would too.
engineering is the art of not constructing...of doing that well with one dollar what any bungler can do well with two after a fashion.
price of steel? ... it is a testament though, in this country it seems we no longer manufacture? ... just look at the stuff you buy, made in china is all over it ... what with the high tech death rattle its difficult to see how we are all going to make our nickel off the same nickle ... 'new economy', bs. i don't see much sustainability right now ... churning the service sector and financial sector, off shore out sourcing etc... there's a structural problem here ... hahaha thats why you get my to bits? i like a smoke stack! great structures to design!
the cost of re-bar has increased 100% + in the last three months in nw fl.
additionally there was a five dollar per yard increase in concrete last month and a nine dollar per load fuel surcharge. next month there is another five $ per yard concrete scheduled.
__________________
借用达朗贝尔的名言:前进吧,你会得到信心!
[url="http://www.dimcax.com"]几何尺寸与公差标准[/url]
huangyhg离线中   回复时引用此帖
GDT自动化论坛(仅游客可见)
回复


主题工具 搜索本主题
搜索本主题:

高级搜索
显示模式

发帖规则
不可以发表新主题
不可以回复主题
不可以上传附件
不可以编辑您的帖子

vB 代码开启
[IMG]代码开启
HTML代码关闭

相似的主题
主题 主题发起者 论坛 回复 最后发表
structural steel design software huangyhg 产品功能分析 0 2009-09-16 11:43 AM
structural ii huangyhg 产品功能分析 0 2009-09-16 11:25 AM
pe structural i or civil huangyhg 产品功能分析 0 2009-09-15 11:54 AM
heat straightening of steel beams huangyhg 产品功能分析 0 2009-09-09 04:00 PM
connection of structural steel with stainless steel huangyhg 产品功能分析 0 2009-09-08 01:15 PM


所有的时间均为北京时间。 现在的时间是 11:10 AM.


于2004年创办,几何尺寸与公差论坛"致力于产品几何量公差标准GD&T | GPS研究/CAD设计/CAM加工/CMM测量"。免责声明:论坛严禁发布色情反动言论及有关违反国家法律法规内容!情节严重者提供其IP,并配合相关部门进行严厉查处,若內容有涉及侵权,请立即联系我们QQ:44671734。注:此论坛须管理员验证方可发帖。
沪ICP备06057009号-2
更多